Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop a new packet when sch-limit == 0. Expected behavior: If the scheduler’s limit is reached, pfifotailenqueue will drop a packet from the scheduler’s queue and decrease the scheduler’s qlen by one. Then, it wi...

CyberQRM

CyberQRM – Gestión Cuantitativa de Riesgos Cibernéticos Una plataforma local de código abierto para la evaluación cuantitativa de riesgos de ciberseguridad utilizando el marco FAIR v3.1 Factor Analysis of Information Risk. Modele amenazas, ejecute simulaciones Monte Carlo, mida la efectividad de...

CVE-2026-47857 Reactor Core windowTimeout fair-backpressure stream hang due to 20-bit index wrap-around

In Reactor Core, applications that use the Flux.windowTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.5.0 - 3.7.19 Reactor Core 3.4.41 and earlier...

CVE-2026-47857

Reactor Core is affected by a Denial of Service condition in the Flux.windowTimeout operator when fairBackpressure is enabled. The root cause is a 20-bit index wrap-around that can cause the stream to hang, leading to an availability impact with no confidentiality or integrity loss. Affected vers...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Do not balance tasks to their current running CPUs. We encountered a situation where the balancer attempts to balance a migrated task with disabled status, triggering a warning in settaskcpu. The detailed error messag...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bfq: Ensure that the bfqg resource, against which we are queuing requests, is online. BiOS queued into the BFQ IO scheduler can be associated with a cgroup that was already offline. This may lead to the insertion of this...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Address reentrant enqueue adding class to eltree twice Savino says: “We are writing to report that this recent patch 141d34391abbb315d68556b7c67ad97885407547 1 can be bypassed, and a UAF can still occur when HFSC ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bfq: Avoid merging queues with different parents It can happen that the parent of a bfqq changes between the moment we decide that two queues are worth merging and set bic-stablemergebfqq and the moment bfqsetupmerge is called...

cve-2026-47857 - MEDIUM - Reactor Core windowTimeout fair-backpressure stream hang due to 20-bit index wrap-around

cve-2026-47857 - MEDIUM - Reactor Core windowTimeout fair-backpressure stream hang due to 20-bit index wrap-around...

cve-2026-47863 - MEDIUM - Reactor Core bufferTimeout fair-backpressure pipeline permanently hangs when upstream delivers items during an active flush

cve-2026-47863 - MEDIUM - Reactor Core bufferTimeout fair-backpressure pipeline permanently hangs when upstream delivers items during an active flush...

CVE-2026-64012

A flaw was found in the Linux kernel's Stochastic Fair Blue SFB queue discipline net/sched: schsfb. This vulnerability occurs when the sfb component, acting as a parent queue, attempts to retrieve a network packet from its child queue using an incorrect dequeue function. This can lead to a null...

SUSE CVE-2026-52980

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980

A flaw was found in the Linux kernel's sched/fair scheduler. When a new schedentity is forked, its reldeadline may be unexpectedly set, leading to an abnormally large deadline value. If the task later calls schedyield, this inflated deadline can cause an overflow in vruntime calculations. This ca...

EUVD-2026-38848

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980 sched/fair: Clear rel_deadline when initializing forked entities

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980 sched/fair: Clear rel_deadline when initializing forked entities

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Clear reldeadline when initializing forked entities A yield-triggered crash can happen when a newly forked schedentity enters the fair class with se-reldeadline unexpectedly set. The failing sequence is: 1. A task is...

CVE-2026-52980

CVE-2026-52980 concerns the Linux kernel sched/fair subsystem. Connected sources describe a bug where, when a new sched_entity is forked, its se->rel_deadline may still be set and cause the scheduler to treat the deadline as relative, converting it to an absolute value by adding the current vr...